Not displaying leaderboard on a surface gui?

So I was working on leaderboard that displays players with the highest level but there seems to be an error.

Here's the surface leaderboard, https://gyazo.com/e994ca0220005a11dbdc91b84a88c61a

Here's where everything is located, https://gyazo.com/34d499a114e8fc320beb25ce56192d40

local player = game.Players.LocalPlayer
local Stats = player:WaitForChild("leaderstats")
local Level = Stats.Level

script.Parent.PlayerFrame.Level.Text = Stats

function CreateGui()
	return script.Parent.PlayerFrame:clone()
end

function GetTopPlayers()
	local TopPlayers={}
	local Numbers={}
	local PossiblePlayers={}
	
	local function GetPlayerWins(Player)
		if Player and Player:FindFirstChild("leaderstats") then
			return Player.leaderstats.Level.Value
		end
		return 0
	end
	
	for i,v in pairs(game.Players:GetPlayers()) do
		table.insert(Numbers,GetPlayerWins(v))
		table.insert(PossiblePlayers,v)
	end
	
	local function GetBiggest()
			local Biggest=math.max(unpack(Numbers))
			local Player
			
			for index,value in pairs(PossiblePlayers) do
				if Biggest==GetPlayerWins(value) then
					Player=value
					table.remove(PossiblePlayers,index)
					break
				end
			end
			for i,v in pairs(Numbers) do
				if v==Biggest then
					print("Removed: "..v.." "..Numbers[i])
					table.remove(Numbers,i)
					break
				end
			end
			return Player
	end
	
	for i = 1,#game.Players:GetPlayers() do
		local Biggest=GetBiggest()
		table.insert(TopPlayers,i,Biggest)
	end
	
	return TopPlayers
end

function UpdateGui()
	local TopPlayers=GetTopPlayers()
	
	local function ClearGuis()
		for i,v in pairs(script.Parent:GetChildren()) do
			if v.Name=="Player" then v:Destroy() end
		end
	end
	
	ClearGuis()
	
	if #TopPlayers>0 then
		for i,v in pairs(TopPlayers) do
			if i>10 then break end
			pcall(function()
			local Frame=CreateGui()
			Frame.BackgroundColor3=Color3.new(1,1,1)
			Frame.Name="Player"
			Frame.Parent=script.Parent
			Frame.Position=UDim2.new(0.05,0,i*.08,0)
			Frame.PlayerName.Text=v.Name
			Frame.Place.Text=i
			Frame.Level.Text=tostring(v.leaderstats.Level.Value)
			end)
		end
	end
end

game.Players.PlayerAdded:connect(function(Player)
	UpdateGui()
	
	Player:WaitForChild("leaderstats"):WaitForChild('Level').Changed:connect(function()
		UpdateGui()
	end)
	
	UpdateGui()
	
end)

game.Players.PlayerRemoving:connect(function(Player)
	UpdateGui()
end)